Alert archive / Louisiana / Mesoscale Discussions in 2004

Mesoscale Discussion 1096

June 5, 200418 parishes in Louisiana; 9 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2004, 11:45 AM CDT for 18 parishes in Louisiana; 9 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Jun 5, 2004, 11:45 AM CDT (16:45 UTC)
Expired: Jun 5, 2004, 2:15 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center

All 27 counties

Acadia Parish, LA, Allen Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Lafourche Parish, LA, Saint Charles Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA, Chambers County, TX, Hardin County, TX, Harris County, TX, Jasper County, TX, Jefferson County, TX, Liberty County, TX, Newton County, TX, Orange County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 16 km from the middle of the area, began a volume at 16:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.8 hours before the alert went out and 17 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2817 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 4, 7:25 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Bell, Bosque, Brown, Callahan, Coleman and 22 more	4 hr
Jun 4, 8:04 PM CDT	Mesoscale Discussion	SPC	Hansford, Hutchinson, Lipscomb, Ochiltree, Roberts	116 min
Jun 4, 9:35 PM CDT	Mesoscale Discussion	SPC	Bell, Burnet, Coryell, Lampasas, Williamson	115 min
Jun 4, 11:43 PM CDT	Mesoscale Discussion	SPC	Borden, Brown, Callahan, Coke, Coleman, Concho and 18 more	2 hr
Jun 5, 2:34 PM CDT	Mesoscale Discussion	SPC	Armstrong, Briscoe, Carson, Castro, Collingsworth, Dallam and 19 more	116 min
Jun 5, 3:15 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Cochran and 17 more	6 hr
Jun 5, 3:28 PM CDT	Mesoscale Discussion	SPC	Borden, Coke, Crosby, Dawson, Dickens, Fisher and 14 more	2 hr
Jun 5, 4:14 PM CDT	Mesoscale Discussion	SPC	Atascosa, Bandera, Bexar, Brazoria, Caldwell, Calhoun and 17 more	2 hr
Jun 5, 4:35 PM CDT	Severe Thunderstorm Watch	SPC	Gray, Hemphill, Lipscomb, Wheeler	6 hr
Jun 5, 5:00 PM CDT	Mesoscale Discussion	SPC	Anderson, Bowie, Camp, Cass, Cherokee, Delta and 27 more	60 min
Jun 5, 5:48 PM CDT	Mesoscale Discussion	SPC	Dallam, Hansford, Hartley, Lipscomb, Moore, Ochiltree and 1 more	87 min

Nearby

Mesoscale Discussions in Louisiana, 2004 Mesoscale Discussions in Texas, 2004 Every mesoscale discussion in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.